_Realität_ (reality).[2] That upon which actuality acts is always matter; actuality's whole 'Being' and essence therefore consist only in the orderly change, which _one_ part of it causes in another, and is therefore wholly relative, according to a relation which is valid only within the boundary of actuality, as in the case of time and space." The eternal and exclusive Becoming, the total instability of all reality and actuality, which continually works and becomes and never _is,_ as Heraclitus teaches--is an awful and appalling conception, and in its effects most nearly related to that sensation, by which during an earthquake one loses confidence in the firmly-grounded earth. It required an astonishing strength to translate this effect into its opposite, into the sublime, into happy astonishment. Heraclitus accomplished this through an observation of the proper course of all Becoming and Passing, which he conceived of under the form of polarity, as the divergence of a force into two qualitatively different, opposite actions, striving after reunion. A quality is set continually at variance with itself and separates itself into its opposites: these opposites continually strive again one towards another. The common people of course think to recognise something rigid, completed, consistent; but the fact of the matter is that at any instant, bright and dark, sour and sweet are side by side and attached to one another like two wrestlers of whom sometimes the one succeeds, sometimes the other. According to Heraclitus honey is at the same time sweet and bitter, and the world itself an amphora whose contents constantly need stirring up. Out of the war of the opposites all Becoming originates; the definite and to us seemingly persistent qualities express only the momentary predominance of the one fighter, but with that the war is not at an end; the wrestling continues to all eternity. Everything happens according to this struggle, and this very struggle manifests eternal justice. It is a wonderful conception, drawn from the purest source of Hellenism, which considers the struggle as the continual sway of a homogeneous, severe justice bound by eternal laws. Only a Greek was able to consider this conception as the fundament of a _Cosmodicy;_ it is Hesiod's good Eris transfigured into the cosmic principle, it is the idea of a contest, an idea held by individual Greeks and by their State, and translated out of the gymnasia and palæstra, out of the artistic agonistics, out of the struggle of the political parties and of the towns into the most general principle, so that the machinery of the universe is regulated by it. Just as every Greek fought as though he alone were in the right, and as though an absolutely sure standard of judicial opinion could at any instant decide whither victory is inclining, thus the qualities wrestle one with another, according to inviolable laws and standards which are inherent in the struggle. The